21416913

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{2411}}^1$

素因数の和:2474

約数の個数: 32

約数和(自身を含む): 37048320

約数和(自身を除く): 15631407

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 2411, 2961, 7233, 8883, 16877, 21699, 50631, 65097, 113317, 151893, 339951, 455679, 793219, 1019853, 2379657, 3059559, 7138971, 21416913]

約数ペア:

[(1, 21416913), (3, 7138971), (7, 3059559), (9, 2379657), (21, 1019853), (27, 793219), (47, 455679), (63, 339951), (141, 151893), (189, 113317), (329, 65097), (423, 50631), (987, 21699), (1269, 16877), (2411, 8883), (2961, 7233)]